Description
Specifications Table
Product Name – CAPSO, 99%
Quantity/Pack Size – 1KG, 25GR, 100GR
Form – Powder
Grade – 99%
Application – Buffering agent for biochemical research
Product Overview
CAPSO (3-(Cyclohexylamino)-2-hydroxy-1-propanesulfonic acid) is a high-purity zwitterionic buffer with a pKa of 9.6, making it ideal for applications requiring precise pH control in the alkaline range. This 99% grade CAPSO is synthesized under stringent quality controls to ensure minimal impurities, consistent performance, and reliable reproducibility in sensitive biochemical assays. Its chemical stability and resistance to enzymatic degradation make it a preferred choice for protein purification, electrophoresis, and cell culture media formulation. The powder form allows for flexible preparation of concentrated stock solutions, while its non-toxic and non-volatility properties enhance lab safety. Compatible with most biological systems, CAPSO maintains buffering capacity across a wide temperature range, reducing pH fluctuations during experimental procedures. Whether used in molecular biology, biochemistry, or analytical chemistry, this CAPSO buffer delivers exceptional clarity and solubility, ensuring accurate results without interfering with downstream applications.
FAQs
1. What is the effective pH range for CAPSO buffer?
CAPSO functions optimally between pH 8.9–10.3, with its pKa at 9.6, making it suitable for alkaline-sensitive applications.
2. Can CAPSO be autoclaved for sterilization?
Yes, CAPSO solutions can be autoclaved at 121°C for 20 minutes without significant degradation or pH shifts.
3. How does CAPSO compare to HEPES or Tris buffers?
Unlike HEPES (pKa 7.5) or Tris (pKa 8.1), CAPSO is specifically designed for higher pH ranges, offering better stability in alkaline conditions.
4. What is the recommended storage condition for CAPSO powder?
Store in a cool, dry place at room temperature (15–25°C), sealed tightly to prevent moisture absorption and contamination.
5. Is CAPSO compatible with metal ion-sensitive assays?
CAPSO has low metal-chelation properties, reducing interference in assays involving calcium, magnesium, or other divalent cations.










